AM_Winchite Formula: K.13 (Ca.66 Na1.34) Mg2.79 Fe1.92 Al.32 Ti.01 Mn.07 Si7.88 O23.77 (F.23 H1.77) Name: Winchite Unit cell: 9.8339 18.0357 5.2974 90.0 104.195 90.0 , V=910.87 Space group: C12/M1 (12)

Sokolova E V , Hawthorne F C , Gorbatova V , McCammon C , Schneider J , The Canadian Mineralogist , 39 (2001) p.171-177, Ferrian winchite from the Ilmen mountains, southern Urals,, Russia and some problems with the current scheme for amphibole nomenclature, Locality: Ilmen mountains, southern Urals, Russia, Note: x-coordinate of T1 and all coordinates of O6, adjusted to match reported bond lengths